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Route Reliability

Chicago → Los Angeles

MDW–LAX · 1,751 miles · Chicago Midway International Airport to Los Angeles International Airport

74
Usually Fine
WanderNerd Reliability Score
71%
Arrive within 15 minutes
10 min
Average arrival delay
1.0%
Cancelled
1,355
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 71% of the time across 1,355 flights. No comparison to make.

What the data says

Morning flights do better here.

MDW–LAX flights departing between 3–6 AM arrived on time 88% of the time, versus 57% between 9 PM–12 AM.

Sunday scaries are real for this one.

MDW–LAX flights arrived on time 78% of the time on Wednesdays. On Sundays: 67%.

Flights on this route

The breakdown

On-time by weekday
  • Mon70%(204 flights)
  • Tue76%(190 flights)
  • Wed78%(187 flights)
  • Thu67%(199 flights)
  • Fri68%(207 flights)
  • Sat75%(161 flights)
  • Sun67%(190 flights)
On-time by departure window
  • 3–6 AM88%(34 flights)
  • 6–9 AM82%(319 flights)
  • 9 AM–12 PM79%(187 flights)
  • 12–3 PM67%(103 flights)
  • 3–6 PM67%(224 flights)
  • 6–9 PM69%(227 flights)
  • 9 PM–12 AM57%(244 flights)
On-time trend by month
67%
May

Jun 69% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%136
July 202570%145
August 202576%121
September 202578%116
October 202572%119
November 202578%100
December 202567%115
January 202673%96
February 202669%84
March 202670%101
April 202664%101
May 202667%104

Same trip, other airports

Keep nerding

Based on 1,355 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.